package bjx.com.siji.zxing.activity;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.res.AssetFileDescriptor;
import android.graphics.Bitmap;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.os.Handler;
import android.os.Vibrator;
import android.support.v7.app.AppCompatActivity;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.Window;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;

import java.io.IOException;
import java.util.Vector;

import bjx.com.siji.R;
import bjx.com.siji.zxing.camera.CameraManager;
import bjx.com.siji.zxing.decoding.CaptureActivityHandler;
import bjx.com.siji.zxing.decoding.CaptureActivityHandler.DecodeCallback;
import bjx.com.siji.zxing.decoding.InactivityTimer;
import bjx.com.siji.zxing.view.ViewfinderView;

/**
 * Initial the camera
 *
 * @author Ryan.Tang
 * @modifier Lemon
 * @use extends CaptureActivity并且在setContentView方法后调用init方法
 */
public abstract class CaptureActivity extends AppCompatActivity implements Callback,   DecodeCallback {
    //	private static final String TAG = "CaptureActivity";

    protected Activity context;
    protected SurfaceView surfaceView;
    protected ViewfinderView viewfinderView;

    protected int scanModel = 1;

    private ProgressDialog progressDialog;

    private final int MY_PERMISSIONS_REQUEST_READ_CONTACTS = 10;

    private boolean isRun = false;

    public boolean isRun() {
        return isRun;
    }

    public void setRun(boolean run) {
        isRun = run;
    }

    private boolean shake = true;

    public boolean isShake() {
        return shake;
    }

    public void setShake(boolean shake) {
        this.shake = shake;
    }

    /**
     * 初始化，必须在setContentView之后
     *
     * @param context
     * @param viewfinderView
     */
    protected void init(Activity context, SurfaceView surfaceView, ViewfinderView viewfinderView) {
        this.context = context;
        this.surfaceView = surfaceView;
        this.viewfinderView = viewfinderView;
        hasSurface = false;
        inactivityTimer = new InactivityTimer(CaptureActivity.this);
        CameraManager.init(getApplication());
    }

    public int getScanModel() {
        return scanModel;
    }

    public void setScanModel(int scanModel) {
        this.scanModel = scanModel;
    }

    private boolean isOn = false;

    protected final boolean isOn() {
        return isOn;
    }

    /**
     * 打开或关闭闪关灯
     *
     * @param on
     */
    protected void switchLight(boolean on) {
        if (on == isOn()) {
            return;
        }

        isOn = CameraManager.get().switchLight(on);
    }


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
    }


    public CaptureActivityHandler handler;
    private boolean hasSurface;
    private Vector<BarcodeFormat> decodeFormats;
    private String characterSet;
    private InactivityTimer inactivityTimer;
    private MediaPlayer mediaPlayer;
    private boolean playBeep;
    private static final float BEEP_VOLUME = 0.10f;
    private boolean vibrate;

    @Override
    protected void onResume() {
        super.onResume();
        SurfaceHolder surfaceHolder = surfaceView.getHolder();
        if (hasSurface) {
            initCamera(surfaceHolder);
        } else {
            surfaceHolder.addCallback(this);
            surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        }
        decodeFormats = null;
        characterSet = null;

        playBeep = true;
        AudioManager audioService = (AudioManager) getSystemService(AUDIO_SERVICE);
        if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
            playBeep = false;
        }
        initBeepSound();
        vibrate = true;
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (handler != null) {
            handler.quitSynchronously();
            handler = null;
        }
        isOn = false;
        CameraManager.get().closeDriver();
    }


    @Override
    protected void onDestroy() {
        inactivityTimer.shutdown();
        super.onDestroy();
    }


    public static final String RESULT_QRCODE_STRING = "RESULT_QRCODE_STRING";

    /**
     * Handler scan result
     *
     * @param result
     * @param barcode
     */
    public void handleDecode(Result result, Bitmap barcode) {
        inactivityTimer.onActivity();
        playBeepSoundAndVibrate();
    }

    private void initCamera(SurfaceHolder surfaceHolder) {
        try {
            CameraManager.get().openDriver(surfaceHolder);
        } catch (IOException ioe) {
            return;
        } catch (RuntimeException e) {
            return;
        }
        if (handler == null) {
            handler = new CaptureActivityHandler(this, decodeFormats,
                    characterSet, viewfinderView, this);
        }
    }

    @Override
    public void drawViewfinder() {
        viewfinderView.drawViewfinder();
    }


    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width,
                               int height) {

    }

    @Override
    public void surfaceCreated(final SurfaceHolder holder) {
        if (!hasSurface) {
            hasSurface = true;
//            RxPermissions rxPermissions = new RxPermissions(this);
//            rxPermissions.request(Manifest.permission.CAMERA).
//                    subscribe(new Consumer<Boolean>() {
//                        @Override
//                        public void accept(Boolean aBoolean) throws Exception {
//                            if (aBoolean) {
//
//                            } else {
//                                ToastUtil.showShort(CaptureActivity.this, "请开启相机权限");
//                                finish();
//                            }
//                        }
//                    });

            initCamera(holder);
        }
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        hasSurface = false;

    }


    public Handler getHandler() {
        return handler;
    }

    public void restartPreviewAndDecode() {
        if (handler != null) {
            handler.restartPreviewAndDecode();
        }
    }

    private void initBeepSound() {
        if (playBeep && mediaPlayer == null) {
            // The volume on STREAM_SYSTEM is not adjustable, and users found it
            // too loud,
            // so we now play on the music stream.
            setVolumeControlStream(AudioManager.STREAM_MUSIC);
            mediaPlayer = new MediaPlayer();
            mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mediaPlayer.setOnCompletionListener(beepListener);

            AssetFileDescriptor file = getResources().openRawResourceFd(
                    R.raw.beep);
            try {
                mediaPlayer.setDataSource(file.getFileDescriptor(),
                        file.getStartOffset(), file.getLength());
                file.close();
                mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
                mediaPlayer.prepare();
            } catch (IOException e) {
                mediaPlayer = null;
            }
        }
    }

    private static final long VIBRATE_DURATION = 200L;

    private void playBeepSoundAndVibrate() {
        if (playBeep && mediaPlayer != null) {
            mediaPlayer.start();
        }
        if (vibrate) {
            Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
            vibrator.vibrate(VIBRATE_DURATION);
        }
    }

    /**
     * When the beep has finished playing, rewind to queue up another one.
     */
    private final OnCompletionListener beepListener = new OnCompletionListener() {
        public void onCompletion(MediaPlayer mediaPlayer) {
            mediaPlayer.seekTo(0);
        }
    };

    protected void setScanMode(int scanMode) {
        if (this.scanModel != scanMode) {
            this.scanModel = scanMode;
            viewfinderView.setPhoneMode(scanMode);
            CameraManager.get().switchMode(scanMode);
            viewfinderView.invalidate();
        }
    }

    public void buildProgressDialog() {
        if (progressDialog == null) {
            progressDialog = new ProgressDialog(this);
            progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
        }
        progressDialog.setMessage("识别中...");
        progressDialog.setCancelable(true);
        progressDialog.show();
    }

    public void setProgressMessage(String message) {
        if (progressDialog != null) {
            progressDialog.setMessage("识别中...");
        }
    }

    public void cancelProgressDialog() {
        if (progressDialog != null) {
            if (progressDialog.isShowing()) {
                progressDialog.dismiss();
            }
        }
    }

}